Hello,
some few days ago, my iPhone 4S is not receiving anymore an IP from a DHCP server, even for all the WIFI networks I use to work with.
WIFI authentification is OK, but IP (nor other info received from the DHCP server) is never received.
Anyone ever experienced this ?
Any idea ?
Already used the "Forgot network" and enter connection paramters a couple of times, same result.
Many thanks
Dominique
iPhone 4S, iOS 8.4.1
Hi dofas,
Here are some troubleshooting steps for the issue you are having with your Wi-Fi connection. I've highlighted some key information. Click on the link for complete details.
If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network
https://support.apple.com/en-us/HT204051
Still can’t connect?
Reset your Network Settings. Tap Settings > General > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you’ve used before
- If you're connected to a Wi-Fi network but you can’t get online, try to use your Wi-Fi network on other devices. If you can’t get online using your other devices, there might be a service outage. Call your cable company or internet provider for help.
- Try connecting to a Wi-Fi network in a different location. If your device can connect, you’ll need to get help with your Wi-Fi network. If it can’t connect to any Wi-Fi networks, contact Apple.
- Update your Wi-Fi router with the latest firmware and make sure the router supports your Apple product. For more information, contact the manufacturer of your router.
Recommended settings for Wi-Fi routers and access points
https://support.apple.com/en-us/HT202068
DHCP
The Dynamic Host Configuration Protocol (DHCP) assigns addresses that identify devices on your network. Once assigned, devices use these addresses to communicate with each other and with computers on the Internet. The functionality of a DHCP server can be thought of as similar to a phone company handing out phone numbers, which customers then use to call other people.
Set to: Only one DHCP server per network
Details: There should be only one DHCP server on your network. This DHCP server might be built in to your DSL or cable modem, a standalone router, or integrated with your Wi-Fi router. In any case, only one device should act as a DHCP server on your network. If more than one device has it enabled, you will likely see address conflicts and will have issues accessing the Internet or other resources on your network.
Take care,
Hi dofas,
Here are some troubleshooting steps for the issue you are having with your Wi-Fi connection. I've highlighted some key information. Click on the link for complete details.
If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network
https://support.apple.com/en-us/HT204051
Still can’t connect?
Reset your Network Settings. Tap Settings > General > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you’ve used before
- If you're connected to a Wi-Fi network but you can’t get online, try to use your Wi-Fi network on other devices. If you can’t get online using your other devices, there might be a service outage. Call your cable company or internet provider for help.
- Try connecting to a Wi-Fi network in a different location. If your device can connect, you’ll need to get help with your Wi-Fi network. If it can’t connect to any Wi-Fi networks, contact Apple.
- Update your Wi-Fi router with the latest firmware and make sure the router supports your Apple product. For more information, contact the manufacturer of your router.
Recommended settings for Wi-Fi routers and access points
https://support.apple.com/en-us/HT202068
DHCP
The Dynamic Host Configuration Protocol (DHCP) assigns addresses that identify devices on your network. Once assigned, devices use these addresses to communicate with each other and with computers on the Internet. The functionality of a DHCP server can be thought of as similar to a phone company handing out phone numbers, which customers then use to call other people.
Set to: Only one DHCP server per network
Details: There should be only one DHCP server on your network. This DHCP server might be built in to your DSL or cable modem, a standalone router, or integrated with your Wi-Fi router. In any case, only one device should act as a DHCP server on your network. If more than one device has it enabled, you will likely see address conflicts and will have issues accessing the Internet or other resources on your network.
Take care,
sudden wifi problem with iphone 4s
